Search results for "INTU"
showing 10 items of 1069 documents
Banal Sustainability : Renewing the Cultural Norm of Not Wasting Food
2022
Recently food waste has been raised as a major sustainability problem: roughly one third of the food produced globally ends up lost or wasted. This article investigates how people attach meaning to food waste reduction, based on eight individual interviews conducted with people met at a consumer education event in Helsinki in 2017. It is shown how the traditional cultural norm of not wasting food is reproduced in discourse on thrift and frugality and renewed by research-based arguments from circular economy discourse and environmental and sustainability discourse. It is proposed that the interplay of discourses merge into what Lars Kaijser calls banal sustainability: the complicated issue o…
Weaving the threads of international criminal justice: The double dialogicity of law and politics in the ICC al-Mahdi case
2021
International audience; In this paper, we examine the international criminal trial of Ahmad al-Faqi al-Mahdi, a Malian Islamist who appeared before the International Criminal Court (ICC) in The Hague, charged with the destruction of Islamic shrines during the 2012 jihadist occupation of Timbuktu. Our objective is to analyze the so-called 'al-Mahdi case' as a dialogical network (the destructions occurred in the context of an asynchronous translocal press-mediated exchange between jihadists and the international community) and as an event unfolding at a dialogical site (when the commander responsible for the destructions was referred to the ICC four years later). These two dialogical orders e…
Electrochemical Characterization of Coinage Techniques the 17(th) Century: The maravedis Case
2017
[EN] The voltammetry of immobilized particles (VIMP) methodology was applied to the discrimination of Spanish maravedis produced in 10 different mints between 1661 and 1664 using characteristic signatures for the reduction of cuprite and tenorite in the patina of the coins and catalytic effects on the hydrogen evolution reaction (HER). The variation of the apparent tenorite/cuprite ratio with depth was fitted to potential laws differing from one mint to another for A Coruna, Burgos, Cordoba, Cuenca, Granada, Madrid, Trujillo, Segovia, Sevilla and Valladolid coins. Electrochemical data permitted to detect the changes in the composition (with lowering of the silver content) and manufacturing …
Microchemical surface analysis of historic copper-based coins by the combined use of FIB-FESEM-EDX, OM, FTIR spectroscopy and solid-state electrochem…
2019
[EN] A multi-technique strategy, including microscopy, spectroscopic and electrochemical techniques, is proposed to study thin corrosion layers that form on the surface of historic copper-based coins. An accurate characterisation of this external corrosion layer is important for selecting a suitable conservation and/or restoration treatment. For this purpose, a series of copper-based coins from different historical periods and provenances, which mainly exhibited atmospheric corrosion, was analysed. The morphology of the corrosion layer and the upper core of coins was studied in trenches done on coin surfaces with a focused ion beam gun, coupled to a field emission scanning electron microsco…
Raman spectroscopy characterization of 10-cash productions from the late Chinese emperors to the Republic
2017
[EN] The use of Raman spectroscopy for discriminating monetary emissions, a recurrent problem in much archaeological studies, is described. The method involves the record of Raman signatures of tenorite and crystalline and defective cuprite in the patina based on the idea that subtle, mint-characteristic variations in the composition and metallography of the base metal during the manufacturing process are reflected in the variation in depth of the composition and crystallinity of the corrosion patina. The technique was applied to a series of 10-cash copper coins produced around the transition between the Kuang Hsu and Hsuan Tung last Chinese emperors and the first Republic whose averaged co…
Electrochemical discrimination of mints: The last Chinese emperors Kuang Hsü and Hsüan T'ung monetary unification.
2017
[EN] An electrochemical methodology for discriminating monetary emissions, a recurrent problem in much archaeological studies, is introduced. The method is based on the record of voltammetric signatures of cuprite and tenorite corrosion products in the patina using a minimally invasive nanosampling following the voltammetry of immobilized particles methodology. A model for the depth variation of voltammetric electrochemical parameters characterizing the composition of the corrosion patinas is presented. This model permits to rationalize electrochemical data and discriminate different monetary emissions. The application of this technique, corroborated by electrochemical impedance spectroscop…
La celda del Padre Salamanca en el Convento de la Merced de Cuzco. Guía conceptual de la vida religiosa mercedaria en el altiplano peruano del seteci…
2009
En el año 1650 un terremoto destruye el convento de la Merced de Cuzco, por lo que ha de ser reconstruido de nuevo. Con este motivo se lleva a cabo en el claustro bajo una celda, apodada del Padre Salamanca, cuyos muros y techos están totalmente recubiertos con pinturas al temple, que componen un programa iconográfico unitario, a pesar de que se observan varios estilos y la participación de al menos dos o tres artistas. Este programa sigue los modelos de la Iglesia Contrarreformista y las escenas se estructuran en las cuatro salas de la celda: en el zaguán las virtudes que debe practicar el monje, en el vestíbulo temas iconográficos mercedarios, en el dormitorio la Infancia de Cristo, en la…
Blending pieces of Dupin cyclides for 3D modeling and reconstruction : study in the space of spheres
2013
The thesis deals with the blending of canal surfaces in geometric modeling using pieces of Dupin Cyclides. We try to solve a problem of reconstructing real parts manufactured and controlled by the CEA of Valduc. Using the space of spheres in which we can manipulate both points, spheres and canal surfaces, we simplify some problems. This space is represented by a 4-dimensional quadric in a 5-dimensional space, equipped with the Lorentz form, it is the Lorentz space. In the space of spheres, problems of blending canal surfaces by pieces of Dupin cyclides are simplified in linear problems. We give algorithms to make such blends using the space of spheres and after we come back to 3 dimensions …
A Portable Dynamic Laser Speckle System for Sensing Long-Term Changes Caused by Treatments in Painting Conservation
2018
[EN] Dynamic laser speckle (DLS) is used as a reliable sensor of activity for all types of materials. Traditional applications are based on high-rate captures (usually greater than 10 frames-per-second, fps). Even for drying processes in conservation treatments, where there is a high level of activity in the first moments after the application and slower activity after some minutes or hours, the process is based on the acquisition of images at a time rate that is the same in moments of high and low activity. In this work, we present an alternative approach to track the drying process of protective layers and other painting conservation processes that take a long time to reduce their levels …
Screening of Iberian Coinage in the 2(th)-1(th) BCE Period Using the Voltammetry of Immobilized Particles
2019
[EN] The voltammetry of immobilized particles (VIMP) was applied for grouping a series of 86 Iberian coins nominally minted in the cities of Iltirta, Castulo and Obulco in the 2(th)-1(th) BCE period for which there are no chronological data. Using characteristic signatures for the reduction of cuprite, tenorite and lead corrosion products in the patina of the coins, voltammetric grouping of coins was proposed. Voltammetric data were found to be consistent with textural and compositional properties of the surface and subsurface of selected coins using FIB-FESEM-EDX. The obtained data confirmed a clear separation between the productions of Iltirta on one side, and those of Castulo and Obulco …